>更新时间：2026.07.08

# 微信支付 - APP支付（普通商户）文档索引

> APP 支付为商户提供移动端 APP 内的微信支付能力，用户在商户 APP 中唤起微信完成支付后返回该应用，适用于电商、游戏、生活服务等各类独立 APP 的支付场景。（V2版本接口采用XML作为数据交互的格式）

## 接入指引
- [API详细说明](https://pay.weixin.qq.com/doc/v2/merchant/4011936775.md)
- [APP端开发步骤](https://pay.weixin.qq.com/doc/v2/merchant/4011936836.md)
- [协议规则](https://pay.weixin.qq.com/doc/v2/merchant/4011986620.md)
- [场景介绍](https://pay.weixin.qq.com/doc/v2/merchant/4011936235.md)
- [常见问题](https://pay.weixin.qq.com/doc/v2/merchant/4017131394.md)
- [开发指引](https://pay.weixin.qq.com/doc/v2/merchant/4011936686.md)
- [支付账户](https://pay.weixin.qq.com/doc/v2/merchant/4011988011.md)
- [页面推荐示例](https://pay.weixin.qq.com/doc/v2/merchant/4011936606.md)

## API 列表
- [统一下单](https://pay.weixin.qq.com/doc/v2/merchant/4011936987.md)
- [调起支付接口](https://pay.weixin.qq.com/doc/v2/merchant/4011937148.md)
- [支付结果通知](https://pay.weixin.qq.com/doc/v2/merchant/4011937248.md)
- [查询订单](https://pay.weixin.qq.com/doc/v2/merchant/4011937343.md)
- [关闭订单](https://pay.weixin.qq.com/doc/v2/merchant/4011937627.md)
- [申请退款](https://pay.weixin.qq.com/doc/v2/merchant/4011939427.md)
- [查询退款](https://pay.weixin.qq.com/doc/v2/merchant/4011939583.md)
- [下载交易账单](https://pay.weixin.qq.com/doc/v2/merchant/4011939651.md)
- [下载资金账单](https://pay.weixin.qq.com/doc/v2/merchant/4011939788.md)
- [交易保障](https://pay.weixin.qq.com/doc/v2/merchant/4011939933.md)
- [退款结果通知](https://pay.weixin.qq.com/doc/v2/merchant/4011939959.md)

